Day 1: SDC/CLAMP Create a Control Loop in a Service
@startuml
title This is the flow for designing, configuring and deploying Control Loops
actor Service_Designer
participant SDC
participant CLAMP
actor Operator
participant DCAE_SCH
participant DCAE_Deployment
participant DCAE_Inventory
participant Policy
participant CDS
participant DCAE_Policy_Handler
autonumber
CLAMP -> Policy : Every 5 min. Get available policy models(Ops and Config).
note left
This Step is done asynchronously
end note
Service_Designer -> SDC : Create/Test/Certify service, \nwith control loop DCAE flow
SDC -> CLAMP : CSAR distribution
CLAMP -> DCAE_Inventory : Get DCAE Service Id based on Distributed Parameters
DCAE_Inventory -> CLAMP : Rcv DCAE Service Id based on Distributed Parameters
SDC -> DCAE_SCH : Blueprint distribution
DCAE_SCH -> DCAE_Inventory : Save blueprint
Operator -> CLAMP : Configuration of control loop
note left
During this Step, the Operator can opt
to upload manually a policy model instead of using
an existing one (periodically downloaded)
end note
CLAMP -> CDS: Get list of Actions and payloads \nfor Operational Policies(if CDS is the « Actor »)
CLAMP -> Policy : Create Configuration and Operational Policies
Policy -> DCAE_Policy_Handler : Configuration Policy(mS config.)
CLAMP -> DCAE_Deployment : Trigger Deployment
note left
This Step is involved when the microservices are not
pre-deployed in DCAE(which is the normal case)
end note
@enduml
TODO: Update UML with correct terminology. Update UML to add SDC Service Distribution
example of policies, blueprints, api calls. etc.
Day N: Control Loop Deployment
Control Loop deployment happens when an instance of a Service is created.
TODO flow diagram
Day N: Runtime Flow of a Control Loop
The following is a control loop message flow, across DCAE, Policy and App-C. The sections afterward will describe the process for designing, configuring and instantiating this flow.
{
"event": {
"commonEventHeader": {
"startEpochMicrosec": 1500584201765465,
"sourceId": "Dummy VM UUID - No Metadata available",
"eventId": "11",
"reportingEntityId": "No UUID available",
"internalHeaderFields": {
"collectorTimeStamp": "Thu, 07 20 2017 08:56:52 GMT"
},
"eventType": "HTTP request rate",
"priority": "Normal",
"version": 1.2,
"reportingEntityName": "fwll",
"sequence": 11,
"domain": "measurementsForVfScaling",
"lastEpochMicrosec": 1500584212017216,
"eventName": "vnfScalingMeasurement",
"sourceName": "Dummy VM name - No Metadata available"
},
"measurementsForVfScalingFields": {
"cpuUsageArray": [{
"percentUsage": 0,
"cpuIdentifier": "cpu1",
"cpuIdle": 100,
"cpuUsageSystem": 0,
"cpuUsageUser": 0
}],
"measurementInterval": 10,
"requestRate": 7832,
"vNicUsageArray": [{
"transmittedOctetsDelta": 5680,
"receivedTotalPacketsDelta": 14,
"vNicIdentifier": "eth0",
"valuesAreSuspect": "true",
"transmittedTotalPacketsDelta": 31,
"receivedOctetsDelta": 1332
}],
"measurementsForVfScalingVersion": 2.1
}
}
}
{
"closedLoopControlName": "ControlLoop-vCPE-48f0c2c3-a172-4192-9ae3-052274181b6e",
"version": "1.0.2",
"requestID": "a20e2073-30b1-4357-893b-f5ed57b66ef0",
"closedLoopAlarmStart": 1478189220547,
"closedLoopEventClient": "DCAE_INSTANCE_ID.dcae-tca",
"target_type": "VNF",
"target": "generic-vnf.vnf-name",
"AAI": {
"generic-vnf.vnf-name" : "vCPE_Infrastructure_vGMUX_demo_app"
},
"from": "DCAE",
"policyScope": "DCAE",
"policyName": "DCAE.Config_tca-hi-lo",
"policyVersion": "v0.0.1",
"closedLoopEventStatus": "ONSET"
}
{
"body": {
"input": {
"common-header": {
"timestamp": "2017-08-25T21:06:23.037Z",
"api-ver": "2.00",
"originator-id": "a20e2073-30b1-4357-893b-f5ed57b66ef0",
"request-id": "a20e2073-30b1-4357-893b-f5ed57b66ef0",
"sub-request-id": "1",
"flags": {}
},
"action": "Restart",
"action-identifiers": {
"vnf-id": "vCPE_Infrastructure_vGMUX_demo_app"
}
}
},
"version": "2.0",
"rpc-name": "restart",
"correlation-id": "a20e2073-30b1-4357-893b-f5ed57b66ef0-1",
"type": "request"
}
{
"body": {
"output": {
"common-header": {
"timestamp": "2017-08-25T21:06:23.037Z",
"api-ver": "2.00",
"originator-id": "a20e2073-30b1-4357-893b-f5ed57b66ef0",
"request-id": "a20e2073-30b1-4357-893b-f5ed57b66ef0",
"sub-request-id": "1",
"flags": {}
},
"status": {
"code": 400,
"message": "Restart Successful"
}
}
},
"version": "2.00",
"rpc-name": "restart",
"correlation-id": "a20e2073-30b1-4357-893b-f5ed57b66ef0-1",
"type": "response"
}
{
"closedLoopControlName": "ControlLoop-vCPE-48f0c2c3-a172-4192-9ae3-052274181b6e",
"version": "1.0.2",
"requestID": "0abc0000-b032-4e4b-bd30-88260f444888",
"closedLoopAlarmStart": 1478189220547,
"closedLoopAlarmEnd": 1478589220547,
"closedLoopEventClient": "DCAE_INSTANCE_ID.dcae-tca",
"target_type": "VNF",
"target": "generic-vnf.vnf-name",
"AAI": {
"generic-vnf.vnf-name" : "vCPE_Infrastructure_vGMUX_demo_app"
},
"from": "DCAE",
"policyScope": "DCAE",
"policyName": "DCAE.Config_tca-hi-lo",
"policyVersion": "v0.0.1",
"closedLoopEventStatus": "ABATED"
}
Day N: Runtime Monitoring of a Control Loop
flow diagram
